6222645 has 48 divisors (see below), whose sum is σ = 12684672. Its totient is φ = 2782080.

The previous prime is 6222641. The next prime is 6222679. The reversal of 6222645 is 5462226.

It is not a de Polignac number, because 6222645 - 2² = 6222641 is a prime.

It is a d-powerful number, because it can be written as 6⁷ + 2⁶ + 2¹⁶ + 2²² + 6⁸ + 4³ + 5⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6222641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5952 + ... + 6918.

It is an arithmetic number, because the mean of its divisors is an integer number (264264).

Almost surely, 2^6222645 is an apocalyptic number.

6222645 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6222645 is an abundant number, since it is smaller than the sum of its proper divisors (6462027).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6222645 is a wasteful number, since it uses less digits than its factorization.

6222645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002 (or 999 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 6222645 is about 2494.5230004953. The cubic root of 6222645 is about 183.9324440876.

The spelling of 6222645 in words is "six million, two hundred twenty-two thousand, six hundred forty-five".